Subsections

- Library
- Description
- Dialog Box
- Default properties
- Interfacing function
- Computational function (type 0)

##
Halt

### Library

Events

### Description

This block has a unique input event port. Upon the arrival of an event, the simulation is stopped and the main Scicos window is activated. Simulation can be restarted or continued (Run button).

### Dialog Box

Set Halt block parameters |
State on halt | 0

- State on halt: A scalar value to be placed in the state of the block. For debugging purposes this allows to distinguish between different halts.

### Default properties

- always active: no
- direct-feedthrough: no
- zero-crossing: no
- mode: no
- number/sizes of inputs: 0 /
- number/sizes of outputs: 0 /
- number/sizes of activation inputs: 1 / 1
- number/sizes of activation outputs: 0 /
- continuous-time state: no
- discrete-time state: yes
- name of computational function: hltblk

### Interfacing function

`scilab/macros/scicos_blocks/events/HALT_f.sci`

### Computational function (type 0)

          subroutine hltblk(flag,nevprt,t,xd,x,nx,z,nz,tvec,ntvec,
         &     rpar,nrpar,ipar,nipar,u,nu,y,ny)
    c     Copyright INRIA

    c     Scicos block simulator
    c     Notify simulation to stop  when called
    c     ipar(1) : stop reference
    c
          double precision t,xd(*),x(*),z(*),tvec(*),rpar(*),u(*),y(*)
          integer flag,nevprt,nx,nz,ntvec,nrpar,ipar(*)
          integer nipar,nu,ny

    c
          integer halt
          common /coshlt/ halt
    c
          if(flag.eq.2) then
             halt=1
             if(nipar.gt.0) then
                z(1)=ipar(1)
             else
                z(1)=0.0d0
             endif
          endif
          end